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Shimano RS785 Hydraulic Disc Brake Caliper
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Item # SHI006H

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Item # SHI006H


Brake away, regardless of conditions.

Shimano's RS785 Hydraulic Disc Brake Calipers bring the confidence of disc brakes — formerly available only to Di2 electronic groups — to Shimano's 11-speed mechanical groups. The RS785 brake calipers are the grabby mates to the new RS685 11-speed hydraulic mechanical shift levers. For whatever reason, Shimano has decided to forgo model branding on the hydraulic componentry, but the RS685 brakes share a tier with Ultegra's redoubtable mechanical kit.

As with all revolutionary innovations (11-speed, electronic shifting), we admit to harboring some initial skepticism about whether or not disc brakes are worth the fuss; however, there are two undeniable advantages that you'll notice after just minutes riding with disc brakes.

First, they're consistent, regardless of conditions and circumstances. There's no waiting breathlessly for the pads to clear the rim of water or debris before grabbing. There's also no panic when you're caught in the drops and confronted with a sudden obstacle like a darting squirrel or a car in a blind driveway, the brakes will still stop — even if you don't have time to get a full purchase on the lever.

As if disc braking's confident consistency isn't enough, the RS785 calipers also feature Shimano's IceTech technology. This dissipates heat via cooling fins in the braking pads helping the brakes grab faster while also increasing pad life.

Please note that the RS785 Hydraulic Disc Brake Calipers are only compatible with Shimano's ST-RS685 11-speed hydraulic mechanical shift levers.

  • Post mount
  • IceTech cooling fins
  • Compatible only with Shimano ST-RS685 11-speed levers

Tech Specs

hydraulic disc
Mount Type:
post mount
Rotor Size:
[standard] 140 mm, [optional] 160 mm
Claimed Weight:
[pair] 649 g
Recommended Use:
road cycling, cyclocross, gravel riding
Manufacturer Warranty:
2 year

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Unanswered Question

Does this caliper have an external bleed valve nipple like the SLX/XT calipers or the integrated, hidden nipple in the body? A Google image search for RS785 caliper seems to show both types, but the external nipples are much easier to bleed.

Unanswered Question

Will these calipers work with Shimano ST-RS505 STI 11-speed shifters?

Are these brakes compatable with the ST 785 E shifter

I can answer myself, yes they do.

Does this come with the hydraulic hose?

This item does not come with the hydraulic hose.

Unanswered Question
Avg. ride time: 2h 2m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

What replacement pads work with these? The resin pads just wore out too fast for me (140 rotor and 1,500 miles with lots of tech single track). Stepping up to a 160.

Which shifter do I need to match these to?

Best Answer